{"id":3631,"date":"2026-11-12T11:31:50","date_gmt":"2026-11-12T10:31:50","guid":{"rendered":"https:\/\/mineralien-weltweit.com\/product\/gypsum-velke-nemcice-czech-republic-fluorescence\/"},"modified":"2026-11-12T11:45:11","modified_gmt":"2026-11-12T10:45:11","slug":"gypsum-velke-nemcice-czech-republic-fluorescence","status":"publish","type":"product","link":"https:\/\/mineralien-weltweit.com\/en\/product\/gypsum-velke-nemcice-czech-republic-fluorescence\/","title":{"rendered":"Gypsum Crystal Cluster from Velk\u00e9 N\u011bm\u010dice, Czech Republic"},"content":{"rendered":"<p data-pm-slice=\"1 3 []\">Large gypsum crystal cluster from Velk\u00e9 N\u011bm\u010dice in the Czech Republic, featuring prominent, partly translucent tabular crystals intergrown with numerous smaller, thin-bladed crystals. The entire specimen exhibits yellowish-green fluorescence under UV light.<\/p>\n<h2>Fluorescent Gypsum Crystal Cluster from Velk\u00e9 N\u011bm\u010dice<\/h2>\n<p>This gypsum specimen originates from Velk\u00e9 N\u011bm\u010dice in the South Moravian Region of the Czech Republic. Measuring approximately 11 cm across, the specimen consists of numerous intergrown gypsum crystals of varying sizes. Several large, tabular crystals are particularly prominent, surrounded by smaller, thin-bladed crystals that form a distinctly three-dimensional cluster.<\/p>\n<p>The crystals display predominantly light gray, beige, and slightly yellowish-brown tones. Some areas are translucent, and several larger crystals exhibit clearly developed faces and edges. Numerous smaller, thin tabular crystals occur in the center of the cluster, oriented in different directions. This irregular arrangement creates a varied crystalline structure that can be appreciated from several viewing angles.<\/p>\n<p>A particularly interesting feature is the specimen&#8217;s yellowish-green fluorescence under UV light. The fluorescence extends throughout the entire crystal cluster. In the accompanying UV photograph, the response appears uneven because the UV lamp used was not powerful enough to illuminate the whole specimen uniformly. The excitation wavelength was not documented.<\/p>\n<p>Under normal lighting, the specimen is equally interesting for its complex crystal arrangement. Larger, partly translucent gypsum crystals surround finer crystalline aggregates in the center. Some crystal surfaces show brownish discoloration and natural irregularities. With dimensions of 11 \u00d7 11 \u00d7 8 cm and a weight of 539 g, this is a substantial gypsum crystal cluster from a Czech mineral locality.<\/p>\n<table>\n<tbody>\n<tr>\n<th>Feature<\/th>\n<th>Description<\/th>\n<\/tr>\n<tr>\n<td>Mineral<\/td>\n<td>Gypsum<\/td>\n<\/tr>\n<tr>\n<td>Locality<\/td>\n<td>Velk\u00e9 N\u011bm\u010dice, South Moravian Region, Czech Republic<\/td>\n<\/tr>\n<tr>\n<td>Color<\/td>\n<td>Light gray, beige to yellowish-brown<\/td>\n<\/tr>\n<tr>\n<td>Transparency<\/td>\n<td>Partly translucent<\/td>\n<\/tr>\n<tr>\n<td>Crystal habit<\/td>\n<td>Predominantly tabular, including thin-bladed crystals<\/td>\n<\/tr>\n<tr>\n<td>Crystal arrangement<\/td>\n<td>Three-dimensional intergrown crystal cluster<\/td>\n<\/tr>\n<tr>\n<td>Fluorescence<\/td>\n<td>Yellowish-green throughout the specimen under UV light<\/td>\n<\/tr>\n<tr>\n<td>Dimensions<\/td>\n<td>11 \u00d7 11 \u00d7 8 cm<\/td>\n<\/tr>\n<tr>\n<td>Weight<\/td>\n<td>539 g<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>Large gypsum crystal cluster from Velk\u00e9 N\u011bm\u010dice in the Czech Republic, featuring prominent, partly translucent tabular crystals intergrown with numerous smaller, thin-bladed crystals. The entire specimen exhibits yellowish-green fluorescence under UV light. Fluorescent Gypsum Crystal Cluster from Velk\u00e9 N\u011bm\u010dice This gypsum specimen originates from Velk\u00e9 N\u011bm\u010dice in the South Moravian Region of the Czech Republic. [&#8230;]\n","protected":false},"featured_media":3636,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[497,540,351],"product_tag":[],"class_list":["post-3631","product","type-product","status-publish","has-post-thumbnail","product_cat-sulfates-related-minerals","product_cat-czech-republic","product_cat-minerals","first","instock","sold-individually","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Gypsum from Velk\u00e9 N\u011bm\u010dice \u2013 Fluorescent Crystal Cluster<\/title>\n<meta name=\"description\" content=\"Gypsum crystal cluster from Velk\u00e9 N\u011bm\u010dice, Czech Republic. Large, partly translucent crystals with yellowish-green UV fluorescence throughout. 11 cm.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mineralien-weltweit.com\/en\/product\/gypsum-velke-nemcice-czech-republic-fluorescence\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Fluorescent Gypsum Crystal Cluster \u2013 Velk\u00e9 N\u011bm\u010dice, Czech Republic\" \/>\n<meta property=\"og:description\" content=\"Large gypsum crystal cluster from Velk\u00e9 N\u011bm\u010dice in the Czech Republic. Intergrown, partly translucent tabular crystals displaying yellowish-green fluorescence throughout the specimen under UV light.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mineralien-weltweit.com\/en\/product\/gypsum-velke-nemcice-czech-republic-fluorescence\/\" \/>\n<meta property=\"og:site_name\" content=\"mineralien-weltweit.com\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/people\/Mineralien-weltweitcom\/61558661153574\/\" \/>\n<meta property=\"article:modified_time\" content=\"2026-11-12T10:45:11+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/mineralien-weltweit.com\/wp-content\/uploads\/2026\/11\/3-gips-kristallgruppe-velke-nemcice-tschechien-1-280x280.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/mineralien-weltweit.com\\\/en\\\/product\\\/gypsum-velke-nemcice-czech-republic-fluorescence\\\/\",\"url\":\"https:\\\/\\\/mineralien-weltweit.com\\\/en\\\/product\\\/gypsum-velke-nemcice-czech-republic-fluorescence\\\/\",\"name\":\"Gypsum from Velk\u00e9 N\u011bm\u010dice \u2013 Fluorescent Crystal Cluster\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/mineralien-weltweit.com\\\/en\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/mineralien-weltweit.com\\\/en\\\/product\\\/gypsum-velke-nemcice-czech-republic-fluorescence\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/mineralien-weltweit.com\\\/en\\\/product\\\/gypsum-velke-nemcice-czech-republic-fluorescence\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/mineralien-weltweit.com\\\/wp-content\\\/uploads\\\/2026\\\/11\\\/1-gips-velke-nemcice-tschechien.jpg\",\"datePublished\":\"2026-11-12T10:31:50+00:00\",\"dateModified\":\"2026-11-12T10:45:11+00:00\",\"description\":\"Gypsum crystal cluster from Velk\u00e9 N\u011bm\u010dice, Czech Republic. 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